Alfred willaed benson



(No Model.)

A. W. BENSON.

WELL PIPE CUTTER. No. 299,331. Patented May 27, 1884.

Six

WITNESSES: INVENTOR: W71 W in MM #13- ATTORNEYS.

Miran drains A'llENT ALFRED \VILLARD BENSON, OF SAN BERNARDINO,CALIFORNIA.

WELL PiPE CUTTER.

SPECIFICATION forming part of Letters Patent'No. 299,331, dated May 27,1884.

(No model.)

To all whom it may concern Be it known that I, ALFRED \V. BnNsoN, of SanBernardino, San Bernardino county,

California, haveinvented a new and Improved 7 face of the ground, forthe purpose of admitting any stream or streams of water, &c., that mayhave been passed in boring the well, whereby the yielding capacity ofthe well is increased.

The invention consists in a culterroller held in a forked piece, inwhich another forked piece is held which is provided with diagonalslots, through which the pintle of the cutter roller passes. Means areprovided to raise or lower the inner forked part, thereby causing thecutter-roller to project more or less. The device is then worked up anddown and cuts a slot in the pipe. I

Reference is to be had to the accompanying drawings, forming part ofthis specification, in which similar letters of reference indicatecorresponding parts in all the figures.

Figure l is a side View of my improved well-pipe cutter. Fig. 2 is anedge view of the same. Fig. 3 is an enlarged longitudinal sectional viewof the swivel-joint; and Fig. 4. is an enlarged sectional plan view onthe line as 00, Fig. 1. I

In the lower end of a forked piece, A, a sharp-edged cutting-roller, B,is pivoted, the pintle G of which roller passes through i11- clinedslots D in the shanks of a forked piece, E, held between the shanks ofthe forked piece A. A screw, F, projecting upward from the top of theforked piece E, is screwed through aninternally-threaded sleeve, G, heldto turn in the ring I-I, formed on the upper end of the forked piece A.On the upper end of the sleeve G a swivel piece, J, is screwed andfastened, on the upper end of which a screw, K, is formed for attachingthe working-rod. In one edge of the forked piece E anti-friction rollersL are pivoted, and to the lower end of the forked piece E twobowsprings, M, are fastened.

The operation is as follows: The instrument is forced down in thewell-pipe, and the springs M prevent the part E from turning. If theswivel part J is turned, the sleeve G is turned with it .and the part Eis moved up ward, thereby causing the cutter-roller B to project fromthe edge of the part The entire device is then worked up and down,thereby causing the roller B to cut a vertical slot in the pipe, whichslot may be made of any desired width by turning the device more or lesson its longitudinal axis. After the desired slot or slots have been cut,the swivel part J is turned in the inverse direction to cause the part Eto move downward, thereby withdrawing the cutting-roller in between theshanks of the part A.

Having thus described my invention, I claim as new and desire to secureby Letters Patent- 1. In a well-pipe cutter, the combination, with theforked part A, of the forked part E within it, the eutter'roller B,pivoted in the lower part of the part A, the pintle 0, passing throughdiagonal slots D in the part E, and of means for adjusting the part Ehigher or lower in the part A, substantially as herein shownand'described.

2. In a well-pipe cutter, the combination, with the forked part A, ofthe forked part E within it, the cutter-roller B in the lower end of thepart A, thepintle of the roller passing through diagonal slotsD in thepart E, means for adjusting the part E higher or lower in the part A,and of the springs M on the lower end of the part E, substantially asherein shown and described.

3. In a well-pipe cutter, the combination, with the forked part A, ofthe forked part E, having diagonal slots D, the cutter-roller B, held inthe part A, the springs M on the lower end of the part E, and therollers Lon the part E, substantially as herein shown and described.

4. In a well-pipe cutter, the combination, with the forked part A, ofthe forked part E within the same, and provided with diagonal slots D,the cutter-roller B in the lower end of the part A, theinternally-threaded sleeve G, held to turn in the upper end of the partA, and of the swivel J, secured to the sleeve G, substantially as hereinshown and described.

ALFRED WVILLAR-D BENSON. Witnesses G. A. WINGFIELD, H. L. Burorinn.

